What is the severity of ZDI-CAN-21817?

The severity of ZDI-CAN-21817 is considered high due to the potential for local privilege escalation.

How do I fix ZDI-CAN-21817?

To fix ZDI-CAN-21817, users should apply the necessary security updates provided by Parallels for Desktop.

Who is affected by ZDI-CAN-21817?

ZDI-CAN-21817 affects installations of Parallels Desktop for Mac.

Can ZDI-CAN-21817 be exploited remotely?

No, ZDI-CAN-21817 requires local access to the system to exploit the vulnerability.

What are the implications of exploiting ZDI-CAN-21817?

Exploiting ZDI-CAN-21817 could allow an attacker to escalate privileges and gain unauthorized access to sensitive information.

Vulnerability/
ZDI-CAN-21817

high

7.8

19/12/2023

27/2/2025

ZDI-CAN-21817: ZDI-23-1803: Parallels Desktop Updater Improper Verification of Cryptographic Signature Local Privilege Escalation Vulnerability

First published: Tue Dec 19 2023(Updated: )

This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop. An attacker must first obtain the ability to execute low-privileged code on the target host system in order to exploit this vulnerability. The specific flaw exists within the Updater service. The issue results from the lack of proper verification of a cryptographic signature. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root.

Affected Software	Affected Version	How to fix
Parallels Desktop for Mac

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Frequently Asked Questions

What is the severity of ZDI-CAN-21817?
The severity of ZDI-CAN-21817 is considered high due to the potential for local privilege escalation.
How do I fix ZDI-CAN-21817?
To fix ZDI-CAN-21817, users should apply the necessary security updates provided by Parallels for Desktop.
Who is affected by ZDI-CAN-21817?
ZDI-CAN-21817 affects installations of Parallels Desktop for Mac.
Can ZDI-CAN-21817 be exploited remotely?
No, ZDI-CAN-21817 requires local access to the system to exploit the vulnerability.
What are the implications of exploiting ZDI-CAN-21817?
Exploiting ZDI-CAN-21817 could allow an attacker to escalate privileges and gain unauthorized access to sensitive information.

collector/zdi-published
alias/ZDI-CAN-21817
agent/last-modified-date
agent/first-publish-date
agent/severity
agent/references
agent/title
agent/description
agent/softwarecombine
agent/event
agent/source
agent/type
agent/tags
collector/zdi-advisory
source/ZDI
alias/ZDI-23-1803
alias/CVE-2023-50228
agent/software-canonical-lookup
agent/software-canonical-lookup-request
vendor/parallels
canonical/parallels desktop for mac

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